This SNP was originally reported in 2008 as marking one end of a chromosomal region associated with Native American myopathy.[PMID 18843099]

A few years later, in 2013, a mutation known as W284 (rs140291094) was identified as a specific mutation from this region of chromosome 12 that, when present in homozygous form, leads to this syndrome.

rs3842936 is therefore a polymorphism without any functional consequence as far as is currently known.